Contemporary seok population has reached more than 360, for the seventy-first surname, accounts for about 0.35% of the population.Since song dynasty seok population growth in 1000 is a V.The current seok focused on sichuan, hunan, shandong, henan, hebei province, accounts for roughly seok 4 l % of the total population, distribution of second part, liaoning, shaanxi, hubei, shanxi, jiangsu, the six provinces and seok population concentration by 28%.I lived in sichuan seok 9% of the population, as the first big province of seok.The country formed with the center of sichuan and guizhou xiang, LuJi two stone name of clusters.

Seok in the north of the Yangtze river, southwest region is one of the more common surname.In most of southern yunnan, sichuan, chongqing, western hunan, guangxi, hubei southwest and northwest, southeast of shaanxi, gansu, qinghai, hebei east, north of Beijing and tianjin, shandong, shanxi, henan, Inner Mongolia, north eastern, central and northeast, northern liaoning, heilongjiang, north seok generally accounted for over 0.44%, the proportion of the local population center area reached more than 1.5%, its coverage area is about 24% of the total area of the country, for about 38.5% of seok crowd.Most in sichuan, chongqing, shaanxi northwest most western, southern ningxia, gansu, shanxi, most of western and eastern Inner Mongolia, henan, mountain Huan south and clear., wan.Mr Su two northern, central, western liaoning, and southern hubei xiang-gui, in west jilin, heilongjiang and north, northeast seok generally accounted for between 0.33% 0.44% of the population, its coverage area is about 13.4% of the total area of the country, for about 33.5% of seok crowd.